100%干净数据—不包含可疑副本。

100% clean data - contains no suspect duplicates.

youdao

“脏数据”的生成方法与干净数据的生成方法类似。

It was generated using an approach similar to the approach used to generate the clean data.

youdao

这就是与干净数据相比，“脏数据” 的开销更小的原因所在。

This is why there is less overhead for dirty data as compared to clean data.

youdao

Now the last thing is that because the neutron has no net charge, we can change neutron number.

现在，最后一件事是,因为中子没有净电子，我们可以改变中子数。

麻省理工公开课 - 固态化学导论课程节选